6/4/2023 0 Comments Cpuinfo cpu cores![]() ![]() You can view /proc/cpuinfo with the help of cat command or grep command / egrep command. The /proc/cpuinfo file stores CPU and system architecture dependent items, for each supported architecture. It is also printed in /proc/cpuinfo coreid. This information is retrieved via CPUID and deduced from the APIC IDs of the cores in the package. cpuinfox86.physprocid: The physical ID of the package. However, you may also be able to do some rudimentary tests to determine the architecture without importing a special library. Introduction: One can obtain the number of CPUs or cores in Linux from the command line. cpuinfox86.cpudieid: The physical ID of the die. There are usually libraries for obtaining that information if you're using a compiled programming language and you need to determine what architecture you're on. On Linux, any command you type into an interactive terminal session can be scripted so that it's non-interactive, but sometimes you're working with more than just a simple script. Sometimes you need CPU information within a non-interactive interface. ![]() A practical introduction to container terminology.You can also get the model of your CPU with the -processor ( -p for short) option: $ uname -processorĪnd finally, the architecture with -machine ( -m): $ uname -machine For example, you can get the vendor of your CPU with the -hardware-platform ( -i for short) option: $ uname -hardware-platform Because your kernel is highly dependent on your CPU, you can extract a lot of CPU data from its output. The uname command is usually used to print information about your kernel. If all you need to know is the architecture of your CPU, you can use the arch command: $ arch Model name : AMD Ryzen 5 5600X 6-Core Processor Therefore, the procinfo method could output the same information 16 times (assuming you have an 8 core CPU with multithreading). It's this file that applications like KInfocenter parse to deliver data about your CPU, but you can parse it yourself, too. This data is stored in the /proc virtual filesystem in a file named cpuinfo. As the binary responsible for bootstrapping your system, Linux has information about everything it's managing, including the CPU. While we often use the term "Linux" (or sometimes GNU+Linux) to refer to the operating system, it's a kernel first and foremost. The cpuinfo package makes it easy to get particular information about the host machine CPUs from Racket, such as an English description of the models of CPU. Model name : Intel(R) Core(TM) i3 CPU M 380 2.Look at /proc/cpuinfo Model name : Intel(R) Core(TM) i3 CPU M 380 2.53GHzįlags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid dtherm aratĪddress sizes : 36 bits physical, 48 bits virtual ![]() The full contents of /proc/cpuinfo are as follows: processor : 0 Hyperthreaded (virtual) cores would not be included (at least to my mind). The number of 'cores' would be physical cores. The number of 'processors' would be the physical number installed in sockets on the machine. Why they are not numbered like the CPUs and how to distinguish the same core IDs? When someone asks for 'the number of processors/cores' there are 2 answers being requested. I have 4 CPUs: $ cat /proc/cpu* | grep proc*īut if I use cat /proc/cpu* | grep 'core id' I get the same twice core id: 0 Type model name : Intel (R) Xeon (R) CPU X5650 2. ![]()
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